What others say matters most

At TSD we strive to achieve and maintain the very highest levels of service from our very first meeting, to long after installation is complete. We only install products of the highest quality and match that with our professional aftercare services.

Below are the full testimonials from our clients sharing their experiences of using TSD.


TSD were one of six companies that we contacted to have our communal front door replaced. Meeting with them on-site, they knew exactly what we were looking for and gave welcomed suggestions as to how the door should look. The design and costing followed soon after and there was no doubt who we were going to use. The installation team had the old door out and the new door in place within the day. They were exceptionally professional and left everything neat and tidy. A minor incompatibility with our existing door-release system was resolved the next day and after the final visit to fix the trims and seals everything looked amazing. They even trimmed our old door mat to fit perfectly around the new door – such attention to detail! Cannot rate the whole team highly enough and absolutely thrilled with the new door. Exceeds expectations – 5*

Colin McColm

Hi Christina,

Just wanted to say thank you so much for your excellent service. From start to finish you have been such an excellent company to deal with and your installers were a real pleasure too, very professional!  I am absolutely delighted with the new doors and I will get you to quote on the  last remaining wooden door  as soon as you can.

ClaudioAuto Service and Tuning Centre Ltd

Thanks Christina. Just wanted to take this opportunity to say thanks so much for the support you give the estate, it’s very reassuring to know we can rely on our contractors.

MG – Senior Property Manager

Tristan Security Doors were efficient from design to completion. They arrived on time for the survey and delivered the product that we agreed upon. The installers were helpful and polite, they cleaned up after thermselves and nothing was too much bother when asked. I would definitely be prepared to recommend them and will be using their services again for similar projects.

Graham TwistManaging Director – Astra Security Systems Ltd

Tristan Doors are always reliable, honest, trustworthy and straightforward to deal with. I always go to Tristan first as their service is something that I can rely on.

London Secure

I found TSD on the internet [one of five firms I contacted]: not a very auspicious start.  My first contact started to change my view: they were very interested in what I wanted to do [I wanted to build a secure cage around 2 parking bays, with the entry via roller doors], and worked with me to develop an appropriate and cost effective approach.  When they came back with an estimate it was clear they were on the button.  They insisted on a site visit to assess the adequacy of the proposed solution and to provide a fixed quote.  Installation also went well: the quality of the fitting/workmanship was good, they kept to timescales  and were good to have around.

Would I recommend them to someone else?  Yes, absolutely.  They have done an excellent job, at a fair price, and have been great to deal/work with.  What more could I (or anyone else) ask.  They have also supported me well in the 17 months since the work was completed and paid for.

Ron C

Tristan Specialist Doors was first recommended to our company by our approved locksmiths, and from our initial enquiry through to the sight survey, guidance on options and a first class installation with no disruption to our business, I would have no hesitation in using there services again – and would fully recommend and endorse them to others due to there professionalism and services

Mr. M. Jellis –  ACO Building Drainage

I have found working with Tristan Steel Doors an absolute dream both contractually and the final product.

Mr. M Browne – Adrem Contracts

I am very pleased with the collapsible steel gates I had installed by Paul and Jerome of Tristan Steel Doors.  The pre-sales support was excellent and ensured my questions were answered, which was particularly important to me as I had never bought gates previously and wasn’t sure what I wanted or needed.  And the installation was better than I expected with the team arriving early in the day and working non-stop until early evening.  I feel much more secure now having this collapsible steel gate system as it’s tested and approved to Level 1.  Couldn’t ask for anything better!

Mrs. E – London

I just wanted to thank Paul Benjamin of TSD, who undertook the installation last week. His professional approach and expertise was very evident from the work he carried out and he is a credit to your company, who I have already recommended, (because of his work) to a number of friends.

Mr. V. McCarthy

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